Improvement in spark-arresters



WM. AWE ST.

G'NDERA-ExT'vNGulss-:ER

PATENTED JUL251871 wlw-NESQES.. fNvEN-l-cvla` VILLIAM A. VEST, OF BELLEFONTAINE, OHIO.

IMPROVEMENT IN Si'Jl-lilK-AllRESTERSl Specification forming part of Letters Patent No. 117,492, dated `luly 25, 1871.

To all whom t may concern:

Be it known that I, WILLIAM A. WEsr, of Bellefontaine, in the county of Logan and State of Ohio, have made a certain new and useful invention, designed to gather and confine the sparks and cinders issuing omtlie stacks of portable, stationary, locolnotive, and other engines, of which the following is a specilication:

The machine is designed as an attachment to the stacks of portable, stationary, locomotive, and other engines, as represented in the accompanying drawing', for the purpose of gathering and coniining the sparks and cinders, thereby preventingv destruction of property and annoyance of passengers. It consists of a cylindrical wire screen, about two feet in length and of the diameter of the stack, sui-mounted by a sheetiron cap or chamber having an inclination of about forty-iive degrees, upon the plane of which is firmly ixed an inclined screen of fine gauzewire, opposite to which the cap or chamber projects beyond the rim of the cylindrical screen a distance suflicient to form a funnel for the attachment of a descending pipe, down which the sparks and cinders are discharged into a vessel, tank, or cistern below. The cylindrical screen thus surmounted is iirmly attached .to the top or summit of the stack.

Figure l is a sectional elevation of the front part of a boiler, showing a vertical section of my device, the line x au, Fig. 2, indicating the plane of section. Fig. 2 is a front viewr of the apparatus and the upper part ofthe smoke-stack.

B B areparts of a boiler. A is the smokestack. C is a cylindrical screen, placed on the top of the smoke-stack, of sufficient dimensions and sufficiently coarse or open to permit the free egress of the smoke. F is a sheet-iron cap, ca-sing, or chamber surmounting the cylindrical screen. S is an inclined screen, fixed firmly, or

with clasp and hinges, on the plane ofthe cap or chamber over the top of the stack, having an inclination of about forty-ve degrees, and made of iine or gauze-wire, with meshes so small that, While permitting the escape of the steam, it prevents the escape of sparks and cinders. K is a cinder-funnel a-t the projecting base of the cap or chamber F. P is a pipe attached to the funnel K for the conducting of sparks. and cinders. T is a tank at the foot of the pipe l? for the reception and coniinement of sparks and cinders.

The cylindrical screen, surmounted by the cap, and inclined screen, funnel, and conducting-pipe attached, being firmly lixed upon the top or summit of the smoke-stack, the Inode of operation is as follows: The steam from the exhaust or blastpipe is discharged into the smokestack below the cylindrical screen C. The force of the steam drives the smoke, sparks, and cinders with great velocity to the top ofthe stack. The smoke, having no other vent, passes chiefly through the meshes of the cylindrical screen C, a portion only passing through the inclined screen S. The sparks and cindcrs,rbeing forced up with great velocity, strike against the inclined screen S and are thrown oif into the funnel K, whence they pass down the pipe P into the tank T, which Inay be dry or iilled with Water, and are thence removed.

I claim as my invention- In combination with the chimney A, the cylindrical screen C, cap or chamber F, screen S, conducting-pipe K P, and tank T, constructed and arranged substantially as described, for the purpose specified.

VILLIAM A. WEST.

Yitnesses Y EDWARD H. KNIGHT, i SAMUEL E. ALLMON. 

